Support struct arguments with all optional fields #156
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Transaction functions with struct argument that have all their fields as JSON optional causes a parsing error on the chaincode metadata:
Having no required fields causes the
required
property to be an empty array. Draft 4 of the JSON schema specification requires string arrays to contain at least one element, so an error occurs.This change modifies the JSON description of the ObjectMetata
Required
property so that it is omitted when empty.Closes #154.